Size Controlled Copper (I) Oxide Nanoparticles Influence Sensitivity of Glucose Biosensor
Copper (I) oxide (Cu2O) is an appealing semiconducting oxide with potential applications in various fields ranging from photovoltaics to biosensing. The precise control of size and shape of Cu2O nanostructures has been an area of intense research. Here, the electrodeposition of Cu2O nanoparticles is...
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doaj-47d4d9c3e77f424e80dac5afef61c6fb2020-11-24T23:14:33ZengMDPI AGSensors1424-82202017-08-01179194410.3390/s17091944s17091944Size Controlled Copper (I) Oxide Nanoparticles Influence Sensitivity of Glucose BiosensorTian Lan0Ahmad Fallatah1Elliot Suiter2Sonal Padalkar3Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USADepartment of Mechanical Engineering, Iowa State University, Ames, IA 50011, USADepartment of Mechanical Engineering, Iowa State University, Ames, IA 50011, USADepartment of Mechanical Engineering, Iowa State University, Ames, IA 50011, USACopper (I) oxide (Cu2O) is an appealing semiconducting oxide with potential applications in various fields ranging from photovoltaics to biosensing. The precise control of size and shape of Cu2O nanostructures has been an area of intense research. Here, the electrodeposition of Cu2O nanoparticles is presented with precise size variations by utilizing ethylenediamine (EDA) as a size controlling agent. The size of the Cu2O nanoparticles was successfully varied between 54.09 nm to 966.97 nm by changing the concentration of EDA in the electrolytic bath during electrodeposition. The large surface area of the Cu2O nanoparticles present an attractive platform for immobilizing glucose oxidase for glucose biosensing. The fabricated enzymatic biosensor exhibited a rapid response time of <2 s. The limit of detection was 0.1 μM and the sensitivity of the glucose biosensor was 1.54 mA/cm2. mM. The Cu2O nanoparticles were characterized by UV-Visible spectroscopy, scanning electron microscopy and X-ray diffraction.https://www.mdpi.com/1424-8220/17/9/1944electrodepositionnanoparticle sizebiosensorglucose |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tian Lan Ahmad Fallatah Elliot Suiter Sonal Padalkar |
spellingShingle |
Tian Lan Ahmad Fallatah Elliot Suiter Sonal Padalkar Size Controlled Copper (I) Oxide Nanoparticles Influence Sensitivity of Glucose Biosensor Sensors electrodeposition nanoparticle size biosensor glucose |
author_facet |
Tian Lan Ahmad Fallatah Elliot Suiter Sonal Padalkar |
author_sort |
Tian Lan |
title |
Size Controlled Copper (I) Oxide Nanoparticles Influence Sensitivity of Glucose Biosensor |
title_short |
Size Controlled Copper (I) Oxide Nanoparticles Influence Sensitivity of Glucose Biosensor |
title_full |
Size Controlled Copper (I) Oxide Nanoparticles Influence Sensitivity of Glucose Biosensor |
title_fullStr |
Size Controlled Copper (I) Oxide Nanoparticles Influence Sensitivity of Glucose Biosensor |
title_full_unstemmed |
Size Controlled Copper (I) Oxide Nanoparticles Influence Sensitivity of Glucose Biosensor |
title_sort |
size controlled copper (i) oxide nanoparticles influence sensitivity of glucose biosensor |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2017-08-01 |
description |
Copper (I) oxide (Cu2O) is an appealing semiconducting oxide with potential applications in various fields ranging from photovoltaics to biosensing. The precise control of size and shape of Cu2O nanostructures has been an area of intense research. Here, the electrodeposition of Cu2O nanoparticles is presented with precise size variations by utilizing ethylenediamine (EDA) as a size controlling agent. The size of the Cu2O nanoparticles was successfully varied between 54.09 nm to 966.97 nm by changing the concentration of EDA in the electrolytic bath during electrodeposition. The large surface area of the Cu2O nanoparticles present an attractive platform for immobilizing glucose oxidase for glucose biosensing. The fabricated enzymatic biosensor exhibited a rapid response time of <2 s. The limit of detection was 0.1 μM and the sensitivity of the glucose biosensor was 1.54 mA/cm2. mM. The Cu2O nanoparticles were characterized by UV-Visible spectroscopy, scanning electron microscopy and X-ray diffraction. |
topic |
electrodeposition nanoparticle size biosensor glucose |
url |
https://www.mdpi.com/1424-8220/17/9/1944 |
work_keys_str_mv |
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